IRLab is proud to have the following contributions accepted at ECIR 2026: The 48th European Conference on Information Retrieval:

• Amirabbas Afzali, Amirreza Velae, Iman Ahmadi, and Mohammad Aliannejadi. Controlling Gender Bias in Retrieval via a Backpack Architecture
• Andrew Yates, Carlos Lassance, Cosimo Rulli, Eugene Yang, Sean MacAvaney, Siddharth Singh, Thong Nguyen, and Yibin Lei. Neural Lexical Search with Learned Sparse Retrieval (Tutorial)
• Arian Askari, Chuan Meng, Mohammad Aliannejadi, Zhaochun Ren, Evangelos Kanoulas, and Suzan Verberne. Generative Retrieval via Few-shot Indexing
• Catherine Chen, Maria Heuss and Carsten Eickhoff Tutorial on Mechanistic Interpretability (Tutorial)
• Chen Xu, Clara Rus, Yuanna Liu, Marleen de Jonge, Jun Xu, and Maarten de Rijke. Economic Perspectives on Fairness in Information Retrieval (Tutorial)
• Chuan Meng, Fengran Mo, Mohammad Aliannejadi, Jeff Dalton and Jian-Yun Nie. Conversational Search: Foundations, Large Language Models, and Agents (Tutorial)
• Clara Rus, Andrew Yates, and Maarten de Rijke. Judiciously Reducing Sub-group Comparisons for Learning Intersectional Fair Representations
• Clara Rus, Masoud Mansoury, Andrew Yates, and Maarten de Rijke. Joint Modeling of Candidate and Recruiter Preferences for Fair Two-Sided Job Matching
• Ian van Dort and Maria Heuss. How Do LLMs Cite? A Mechanistic Interpretation of Attribution in RAG
• Jan Hutter, Hua Chang Bakker, Stan Fris, Madelon Bernardy, Yuanna Liu. A Systematic Reproducibility Study of BSARec for Sequential Recommendation
• Jia-Huei Ju, François G. Landry, Eugene Yang, Suzan Verberne, Andrew Yates. LANCER: LLM Reranking for Nugget Coverage
• Jingfen Qiao, Jin Huang, Xinyu Ma, Shuaiqiang Wang, Dawei Yin, Evangelos Kanoulas and Andrew Yates. LLM-based Listwise Reranking under the Effect of Positional Bias
• Maxime Dassen, Rebecca Kotula, Kenton Murray, Andrew Yates, Dawn Lawrie, Efsun Kayi, James Mayfield, and Kevin Duh. FACTUM: Mechanistic Detection of Citation Hallucination in Long-Form RAG
• Mohanna Hoveyda, Jelle Piepenbrock, Arjen P. de Vries, Maarten de Rijke, and Faegheh Hasibi. OrLog: Resolving Complex Queries with LLMs and Probabilistic Reasoning
• Mohanna Hoveyda, Panagiotis Eustratiadis, Arjen de Vries, and Maarten de Rijke. Reasoning for IR & IR for Reasoning (Tutorial)
• Roxana Petcu, Mert Yazan, Mohanna Hoveyda, Jirui Qi, and Maarten de Rijke. Workshop on Conversational Search for Complex Information Needs. (Workshop)
• Steven Dong, Yubao Tang, and Maarten de Rijke. Multi-Step Semantic Reasoning in Generative Retrieval
• Yongkang Li. Understanding and Enhancing Robustness in Dense Information Retrieval